diff --git a/Filter/HasChildFilter.php b/Filter/HasChildFilter.php
index 747a82863b9f898ab01cb039f0d766005f0bf3cb..cb8afae97ed19a6ce4af5df0cbaa492fb8af5907 100644
--- a/Filter/HasChildFilter.php
+++ b/Filter/HasChildFilter.php
@@ -30,7 +30,7 @@ class HasChildFilter implements BuilderInterface
     private $type;
 
     /**
-     * @var string
+     * @var BuilderInterface
      */
     private $filter;